impairment,level,legit_ser
amplitude_nmse,0,0.053300
amplitude_nmse,0.001,0.052325
amplitude_nmse,0.01,0.053213
amplitude_nmse,0.03,0.052790
amplitude_nmse,0.1,0.052969
phase_rms_rad,0,0.053000
phase_rms_rad,0.02,0.052800
phase_rms_rad,0.05,0.052500
phase_rms_rad,0.1,0.053800
phase_rms_rad,0.2,0.056600